Wireless Microphone, Cordless Handheld Mic System with Receiver, for Karaoke, Singing, Party, Wedding, DJ, Speech Extensive Use: Stable signal, suitable for indoor and outdoor activities, such as home karaoke, church, wedding, conference and small stage performance. Professional Wireless Microphone is a Uni-Directional dynamic wireless microphone. Professional Wireless Microphone will give you the freedom of movement, Professional Wireless Microphone convenient for your performance. Easy to Use: The Professional Wireless Microphone is convenient and easy to use. Plug and play. Battery: AA Battery Operated (Not including) Application: This Professional Wireless Microphone Great for smaller live performances on stage, weddings, professional engagements or religious events. Frequency Range : 100HZ-20KHZ S\/N Ratio : 70db Package Includes: 1 x Professional Wireless Microphone Set (Battery NOT INCLUDED) Note: 1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures. 2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm) Thanks for your support :)